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SF MARATHON 1ST HALF 2026

Jiayi Ren

Bib: 16391•F•Age: 28

San Francisco, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 29%
Gender (Female)
#0 / 2930
Top 17%
Division (F25-29)
#0 / 674
Top 19%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
8:50/mi
17:41
→ flat
4M
9:09/mi
35:59
↑ 67↓ 69
6M
9:18/mi
54:35
↑ 1231.1%
8M
9:10/mi
1:12:56
↑ 166↓ 531.1%
9.6M
9:10/mi
1:27:36
↑ 68↓ 1931.5%
10M
18:36/mi
1:35:02
↓ 241.1%
10.5M
4:36/mi
1:37:20
↓ 732.7%
12M
13:46/mi
1:57:59
↑ 2803.2%
Finish· 13.11 mi
9:56/mi
2:09:00
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time54:35
Pace9:06 /mi
2nd Half
Distance7.11 mi
Time1:14:25
Pace10:28 /mi
📊Positive Split: 36.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:00:2817:418:5017:41
8:50
-
4M
4.00 mi07:18:4635:599:0018:18
9:09
+0:19
6M
6.00 mi07:37:2254:359:0618:36
9:18
+0:09
8M
8.00 mi07:55:431:12:569:0718:21
9:10
-0:08
9.6M
9.60 mi08:10:231:27:369:0714:40
9:10
0:00
10M
10.00 mi08:17:491:35:029:307:26
18:36
+9:26
10.5M
10.50 mi08:20:071:37:209:162:18
4:36
-14:00
12M
12.00 mi08:40:461:57:599:5020:39
13:46
+9:10
Finish
13.11 mi08:51:472:09:009:5011:01
9:56
-3:50

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

4:36 /mi

Average Pace

9:50 /mi

Slowest Pace

18:36 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:18

2% of race

Time at Steady Pace

1:38:37

76% of race

Time at Slower Pace

28:05

22% of race

Average Pace: 9:50 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
2M
2.00 mi07:00:2817:418:5017:41
8:50
#1318
4M
4.00 mi07:18:4635:599:0018:18
9:09
#1464
6M
6.00 mi07:37:2254:359:0618:36
9:18
#1573
8M
8.00 mi07:55:431:12:569:0718:21
9:10
#1471
9.6M
9.60 mi08:10:231:27:369:0714:40
9:10
#1697
10M
10.00 mi08:17:491:35:029:307:26
18:36
#1768
10.5M
10.50 mi08:20:071:37:209:162:18
4:36
#1769
12M
12.00 mi08:40:461:57:599:5020:39
13:46
#1890
Finish
13.11 mi08:51:472:09:009:5011:01
9:56
#1919
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 38%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

9:44

Segment Time

10:49/mi

Pace

0.90 mi

Distance

Overall

2506

Women

760

Division

192

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi2.00 mi1318289652527(Top 38%)798(Top 27%)208(Top 31%)
4M4.00 mi2.00 mi1464-146330-4176-111650(Top 25%)389(Top 13%)92(Top 14%)
6M6.00 mi2.00 mi1573-109359-2981-51800(Top 27%)449(Top 15%)115(Top 17%)
8M8.00 mi2.00 mi1471+102312+4773+81442(Top 22%)325(Top 11%)71(Top 11%)
9.6M9.60 mi1.60 mi1697-226415-10399-262966(Top 45%)1102(Top 38%)269(Top 40%)
10M10.00 mi0.40 mi1768-71441-26103-42749(Top 42%)892(Top 30%)222(Top 33%)
10.5M10.50 mi0.50 mi1769-14411032082(Top 32%)581(Top 20%)142(Top 21%)
12M12.00 mi1.50 mi1890-121501-60117-142527(Top 38%)798(Top 27%)208(Top 31%)
Finish13.11 mi1.11 mi1919-29512-11125-82765(Top 42%)906(Top 31%)249(Top 37%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 38%
~flat
+5ft-3ft

Overall

2527

Females

798

F25-29

208

2M→4M

2.0 - 4.0 mi

Top 25%
×4story building
+67ft-69ft

Overall

1650

Females

389

F25-29

92

4M→6M

4.0 - 6.0 mi

Top 27%
×9story building
+123ft-9ft

Overall

1800

Females

449

F25-29

115

6M→8M

6.0 - 8.0 mi

Top 22%
×12story building
+166ft-53ft

Overall

1442

Females

325

F25-29

71

8M→9.6M

8.0 - 9.6 mi

Top 45%
×13story building
+68ft-193ft

Overall

2966

Females

1102

F25-29

269

9.6M→10M

9.6 - 10.0 mi

Top 42%
×2story building
+0ft-24ft

Overall

2749

Females

892

F25-29

222

10M→10.5M

10.0 - 10.5 mi

Top 32%
×6story building
+1ft-73ft

Overall

2082

Females

581

F25-29

142

10.5M→12M

10.5 - 12.0 mi

Top 38%
×21story building
+280ft-26ft

Overall

2527

Females

798

F25-29

208

12M→Finish

12.0 - 13.1 mi

Top 42%
×7story building
+14ft-89ft

Overall

2765

Females

906

F25-29

249

Passing Analysis

Category:
Athletes Passed
309*
Passed By
910
Net Change
-601
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#1318
2M → 4M30176-146#1318#1464
4M → 6M25134-109#1464#1573
6M → 8M16462+102#1573#1471
8M → 9.6M12238-226#1471#1697
9.6M → 10M778-71#1697#1768
10M → 10.5M67-1#1768#1769
10.5M → 12M35156-121#1769#1890
12M → Finish30*59-29#1890#1919
TOTALS309*910-601

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events